rtl80x9.c

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    1 /*      $OpenBSD: rtl80x9.c,v 1.12 2021/03/07 06:21:38 jsg Exp $        */
    2 /*      $NetBSD: rtl80x9.c,v 1.1 1998/10/31 00:44:33 thorpej Exp $      */
    3 
    4 /*-
    5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
    6  * All rights reserved.
    7  *
    8  * This code is derived from software contributed to The NetBSD Foundation
    9  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   10  * NASA Ames Research Center.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   31  * POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 
   34 #include "bpfilter.h"
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/mbuf.h>
   39 #include <sys/syslog.h>
   40 #include <sys/socket.h>
   41 #include <sys/device.h>
   42 
   43 #include <net/if.h>
   44 #include <net/if_media.h>
   45 
   46 #include <netinet/in.h>
   47 #include <netinet/if_ether.h>
   48 
   49 #include <machine/bus.h>
   50 
   51 #include <dev/ic/dp8390reg.h>
   52 #include <dev/ic/dp8390var.h>
   53 
   54 #include <dev/ic/ne2000var.h>
   55 
   56 #include <dev/ic/rtl80x9reg.h>
   57 #include <dev/ic/rtl80x9var.h>
   58 
   59 int
   60 rtl80x9_mediachange(struct dp8390_softc *dsc)
   61 {
   62 
   63         /*
   64          * Current media is already set up.  Just reset the interface
   65          * to let the new value take hold.  The new media will be
   66          * set up in ne_pci_rtl8029_init_card() called via dp8390_init().
   67          */
   68         dp8390_reset(dsc);
   69         return (0);
   70 }
   71 
   72 void
   73 rtl80x9_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
   74 {
   75         struct ifnet *ifp = &sc->sc_arpcom.ac_if;
   76         u_int8_t cr_proto = sc->cr_proto |
   77             ((ifp->if_flags & IFF_RUNNING) ? ED_CR_STA : ED_CR_STP);
   78 
   79         /*
   80          * Sigh, can detect which media is being used, but can't
   81          * detect if we have link or not.
   82          */
   83 
   84         /* Set NIC to page 3 registers. */
   85         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_3);
   86 
   87         if (NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG0) &
   88             RTL3_CONFIG0_BNC)
   89                 ifmr->ifm_active = IFM_ETHER|IFM_10_2;
   90         else {
   91                 ifmr->ifm_active = IFM_ETHER|IFM_10_T;
   92                 if (NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3) &
   93                     RTL3_CONFIG3_FUDUP)
   94                         ifmr->ifm_active |= IFM_FDX;
   95         }
   96 
   97         /* Set NIC to page 0 registers. */
   98         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_0);
   99 }
  100 
  101 void
  102 rtl80x9_init_card(struct dp8390_softc *sc)
  103 {
  104         struct ifmedia *ifm = &sc->sc_media;
  105         struct ifnet *ifp = &sc->sc_arpcom.ac_if;
  106         u_int8_t cr_proto = sc->cr_proto |
  107             ((ifp->if_flags & IFF_RUNNING) ? ED_CR_STA : ED_CR_STP);
  108         u_int8_t reg;
  109 
  110         /* Set NIC to page 3 registers. */
  111         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_3);
  112 
  113         /* write enable config1-3. */
  114         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_EECR,
  115             RTL3_EECR_EEM1|RTL3_EECR_EEM0);
  116 
  117         /* First, set basic media type. */
  118         reg = NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2);
  119         reg &= ~(RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0);
  120         switch (IFM_SUBTYPE(ifm->ifm_cur->ifm_media)) {
  121         case IFM_AUTO:
  122                 /* Nothing to do; both bits clear == auto-detect. */
  123                 break;
  124 
  125         case IFM_10_T:
  126                 /*
  127                  * According to docs, this should be:
  128                  * reg |= RTL3_CONFIG2_PL0;
  129                  * but this doesn't work, so make it the same as AUTO.
  130                  */
  131                 break;
  132 
  133         case IFM_10_2:
  134                 reg |= RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0;
  135                 break;
  136         }
  137         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2, reg);
  138 
  139         /* Now, set duplex mode. */
  140         reg = NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3);
  141         if (ifm->ifm_cur->ifm_media & IFM_FDX)
  142                 reg |= RTL3_CONFIG3_FUDUP;
  143         else
  144                 reg &= ~RTL3_CONFIG3_FUDUP;
  145         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3, reg);
  146 
  147         /* write disable config1-3 */
  148         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_EECR, 0);
  149 
  150         /* Set NIC to page 0 registers. */
  151         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_0);
  152 }
  153 
  154 void
  155 rtl80x9_media_init(struct dp8390_softc *sc)
  156 {
  157         static uint64_t rtl80x9_media[] = {
  158                 IFM_ETHER|IFM_AUTO,
  159                 IFM_ETHER|IFM_10_T,
  160                 IFM_ETHER|IFM_10_T|IFM_FDX,
  161                 IFM_ETHER|IFM_10_2,
  162         };
  163         static const int rtl80x9_nmedia =
  164             sizeof(rtl80x9_media) / sizeof(rtl80x9_media[0]);
  165 
  166         int i;
  167         uint64_t defmedia;
  168         u_int8_t conf2, conf3;
  169 
  170         /* Set NIC to page 3 registers. */
  171         bus_space_write_1(sc->sc_regt, sc->sc_regh, ED_P0_CR, ED_CR_PAGE_3);
  172 
  173         conf2 = bus_space_read_1(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2);
  174         conf3 = bus_space_read_1(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3);
  175 
  176         conf2 &= RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0;
  177 
  178         switch (conf2) {
  179         case 0:
  180                 defmedia = IFM_ETHER|IFM_AUTO;
  181                 break;
  182 
  183         case RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0:
  184         case RTL3_CONFIG2_PL1:  /* XXX rtl docs sys 10base5, but chip cant do */
  185                 defmedia = IFM_ETHER|IFM_10_2;
  186                 break;
  187 
  188         case RTL3_CONFIG2_PL0:
  189                 if (conf3 & RTL3_CONFIG3_FUDUP)
  190                         defmedia = IFM_ETHER|IFM_10_T|IFM_FDX;
  191                 else
  192                         defmedia = IFM_ETHER|IFM_10_T;
  193                 break;
  194         }
  195 
  196         /* Set NIC to page 0 registers. */
  197         bus_space_write_1(sc->sc_regt, sc->sc_regh, ED_P0_CR, ED_CR_PAGE_0);
  198 
  199         ifmedia_init(&sc->sc_media, 0, dp8390_mediachange, dp8390_mediastatus);
  200         for (i = 0; i < rtl80x9_nmedia; i++)
  201                 ifmedia_add(&sc->sc_media, rtl80x9_media[i], 0, NULL);
  202         ifmedia_set(&sc->sc_media, defmedia);
  203 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/ic/rtl80x9.c

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sys/dev/ic/rtl80x9.c